Gunung Mulu caves shape more than just limestone

Gunung Mulu caves house millions of bats.

Gunung Mulu National Park lies in Malaysia’s Sarawak state, Borneo.

The park covers 52,864 hectares of tropical rainforest and caves.

Gunung Mulu rises 2,377 metres as a sandstone pinnacle peak.

The park hosts 3,500 vascular plant species, including many palms.

Gunung Mulu has 109 palm species in 20 different genera.

Bat guano sculpts corroded cave walls and stalagmites uniquely here.

The Sarawak Chamber is 600 by 415 metres and 80 metres high.

Sarawak Chamber holds 12 million cubic metres of air volume.

Deer Cave’s diameter ranges from 120 to 150 metres wide.

Clearwater Cave System spreads over 110 kilometres of explored passages.

Caves here reveal geological history stretching back 1.5 million years.

More than 200 cave fauna species live in Gunung Mulu caves.

Millions of swiftlets nest deep inside the vast Clearwater cave system.

Millions of bats and swiftlets live inside Gunung Mulu caves.